Hey guys - after i was gettings error 9000 and 4001 every 10-20 min. i decided to dig into this matter, cause it seems to be a local problem and not a server side problem. This is what i did and have had zero issues for days now: 1) Startup SWTOR and join a server 2) Alt-Tab back to windows 3) Startup Command-Promt in Admin mode 4) Type in the following: Netstat -n -p tcp -b | more 5) You will see a line like this: TCP XXX.XX.XX.XX:***** YY.YYY.YYY.YY:**** ESTABLISHED ZZZZ [swtor.exe] 6) Write down the port address for the local and server side 7) Quit SWOTR 8) Now log on to your router/modem configuration and add the following to your NAT/port forwarding settings: Internal port = "local port" and External port = "server side port" and Protocol = TCP and IP address = "your local ip address on the machine" 9) Save settings 10) Startup SWTOR and see if it helped. For information i have also port forwarded the officiel suggested ports for the game. Hope that this information will help some of you guys ;-) Regards